11101121121211 has 8 divisors (see below), whose sum is σ = 12308843688048. Its totient is φ = 9926486844000.

The previous prime is 11101121121203. The next prime is 11101121121221. The reversal of 11101121121211 is 11212112110111.

11101121121211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11101121121211 - 2³ = 11101121121203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11101121121221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8272071700 + ... + 8272073041.

It is an arithmetic number, because the mean of its divisors is an integer number (1538605461006).

Almost surely, 2^{11101121121211} is an apocalyptic number.

11101121121211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11101121121211 is a deficient number, since it is larger than the sum of its proper divisors (1207722566837).

11101121121211 is a wasteful number, since it uses less digits than its factorization.

11101121121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16544144813.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 11101121121211 its reverse (11212112110111), we get a palindrome (22313233231322).

The spelling of 11101121121211 in words is "eleven trillion, one hundred one billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred eleven".